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Wiki User
∙ 13y agoI believe the two elements (there may be more) are Neon(Atomic number: 10) and Fluorine(Atomic number: 9). To find the neurons, all you have to do is subtract the atomic number and the atomic mass. Hope this helps!
Wiki User
∙ 12y agoSodium and magnesium
Added:
There are more than two naturally occurring isotopes with 12 neutrons:
10Ne(22) isotope (9%)
11Na(23) isotope (100%)
12Mg(24) isotope (78%)
Wiki User
∙ 13y agoTo my best knowledge there are 4 isotopes with 10 neutrons:
8O(18), 9F(19), 10Ne(20), 12Mg(22),
Wiki User
∙ 6y agoMany isotopes have 10 neutrons in the atomic nucleus (Be-14, B-15, etc.).
Wiki User
∙ 12y agoneon and fluorine
Wiki User
∙ 14y agoFluorine & Neon.
Wiki User
∙ 13y agoOxygen
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Radioactivity is a characteristic of elements with what atoms?
Radioactive elements are ones that have too many or two few protons and/or neutrons to achieve stability. For any normally stable isotope, adding or removing neutrons will make a different isotope, and can easily result in an unstable nucleus.
Where are the neutrons located in the fluorine atom?
Neutrons are always located within the nucleus in the case of all elements
Is gold a proton?
Yes it does. All elements have electrons, protons, and neutrons.
Where does the weight of the nucleus mostly come from?
The nucleus is made up of protons and neutrons. Most of the elements with low atomic numbers are equally protons and neutrons. However, as elements get heavier they will have more neutrons than protons, and since each weigh the same amount (1 atomic mass unit) these nuclei will get most of their weight from the neutrons.
How many neutrons are in Indium?
In-115 isotope has 66 neutrons
What two elements have 10 neutrons in there nuclei?
Fluorine (18.994-9=10 neutrons) and Neon (20.180-10=10 neutrons)
What elements have 10 neutrons in their neuclius?
Oxygen-18, fluorine-19 and neon-20 atoms have 10 neutrons each.
Which elements has 2 neutrons?
For the most part Helium has two neutrons, the exception is with isotopes.
What two factors determine the atomic mass of an elements?
neutrons and protons
What two elements make up plutonium?
An atom of plutonium contain protons, neutrons and electrons - not other elements.
An atoms mass number equals the combination of what two things?
The mass number of an element is equal to the sum of the elements neutrons and protons.
What has 10 neutrons?
Neon, and certain isomers of other elements.
What are two things neutrons have?
Neutrons have size (about 10-13 cm in diameter) and mass (1.6749 x 10-27 kg).
Are there neutrons in man made elements?
All chemical elements (excepting the isotope 1H) contain neutrons.
How are elements determind?
Elelments are determined by the amount of protons they have. While different elements can have the same number of neutrons and protons, no two different elements can have the same amount of protons.
Lighter elements have more or less number of protons than neutrons?
Lighter elements tend to have neutrons equal to protonms or only a slight excess. Heavier elements have an excess of neutrons over protons
When an atom has an unbalanced ratio of protons and neutrons what will it try to do to stabalize itself?
There generally isn't a problem; the more protons an atom has, the more neutrons it takes to glue them together. A Helium atom has two protons and generally two neutrons; in every other stable atom, there are more neutrons than protons. There are isotopes of elements with fewer-than-normal numbers of neutrons; these isotopes are generally unstable and radioactive, and will generally decay into other elements.
